why 3rd parameter change to char?

[alan top]

this is idl declaration: STDMETHOD(ExecVerifygps)(/*[in]*/ BSTR gpsContent, /*[in]*/ short length, /*[out, retval]*/ boolean* flag); this build tli file. inline char IVgps::ExecVerifygps ( _bstr_t gpsContent, short length ) { char _result; HRESULT _hr = raw_ExecVerifygps(gpsContent, length, &_result); if (FAILED(_hr)) _com_issue_errorex(_hr, this, __uuidof(this)); return _result; } why 3rd parameter change to char?

alantop

[Stuart Dootson]

C doesn't have a native boolean type (as used in the IDL), so you need to use some other type that's the same size as boolean. An IDL boolean is 8 bits, as is a C char. It would have looked better to use typedef char boolean;, 'cause then you could use boolean in the code.

[lafleon]

Hello, Did you try VARIANT_BOOL? Regards, Leonid